Steering is mounted
I was able to use the stock steering box but it was a little hassle getting it mounted. Because of the pitman arm angle, I needed mount the box flat which caused a nice angle on the steering shaft u-joint. I'm not that happy about the U-joint angle although I don't see it being much of an issue for the time being. To allow frame clearance of the u-joint, I needed to raise up the mounting position of the box by 1.25." I still plan to add a bottom plate to the box for extra support.
I may end up switching to a Fj60 steering box at some point if I notice in wear issues occuring with the ZU box. If everything works well but I need extra turning power, I'll look into tapping the box for hydro assist. Indy4x sells an HD u-joint that I can install if I notice any wear on the stock u-joint.
I still need to ream the pitman arm for 1-ton TREs